RNTI Values In 5G NR, RNTI (Radio Network Temporary Identifier) values are super important for figuring out different types of communication in the network. They help us tell apart control and data transmissions, so we can manage resources efficiently. Each…
What is Contention Resolution in 5G NR RACH? The Contention Resolution Identity (MSG4) is a crucial part of the Random Access procedure in 5G NR. Contention resolution in 5G occurs when multiple UEs attempt to access the network simultaneously, causing…
PDCCH order is one of the reasons for RACH trigger in both LTE and 5G-NR. If the network detects that there is DL Data to be sent to UE in its MAC Buffer and there is a UL synchronization issue…
RACH Failure can happen due to Multiple issues and there might be multiple reasons, I have listed down a list of RACH Failure reasons that can happen in 5G-NR. RACH process is a PHY/MAC Level procedure, but the RACH Configuration…
In the intricate world of 5G networks, the Random Access Channel (RACH) serves as a vital gateway for User Equipment (UE) to establish initial communication with the network. While RACH is commonly associated with UE transitions from idle mode to…
In the 5G-NR RACH process, the gNB’s ability to configure Contention Free RACH to UE hinges on transmitting specific dedicated information. This includes the SSB index, PRACH Preamble, and RACH Occasion. For CFRA RACH to be initiated, the network must…
In 2-Step RACH the msg2 i.e msgB Consists of a Random Access response and Contention resolution identity. It is a combination of msg2+msg4 from a 4-step RACH perspective. The details of msgA transmission and msgB reception are discussed in another…
